Table of Contents
Advertisement
Overload
(Footnote 2)
Recovery from hard overload at 20 kHz into 4 ohms
is 1 s.
Protection
The amplifier protection:
o Is short-circuit proof
o Has over current limiting
o Has gradual power limiting if the amplifier
becomes too hot
o Will cut out if a continuous D.C. offset appears
at the output
o Will cut out if the output current exceeds an
average of 12A continuously over a period of a
few minutes
o Is protected against most input overloads
The power supply protection:
o Will cut out if most common faults are
detected in the power supply (such as over-
voltage, master clock at incorrect frequency,
excessive temperatures)
o Is protected against most mains transients
Components
(Footnote 3)
For reliability and performance:
o All semiconductors are at least industrial
grade
o All electrolytic capacitors are exceptionally
long life industrial grade in both the amplifier
and power supply
o All electrolytics are rated to 105°C
o Only highly linear resistors and MKP10/FKP1
capacitors are employed in the critical audio
path
o Six-layer PCBs are used in the power amplifier
to minimise stray magnetic fields and to
accurately define voltages
o Four-layer PCBs are used in the power supply
to minimise E.M.I. and voltage transients,
which improves reliability and power
efficiency
Compartments
There are four heavily shielded compartments:
o a power supply compartment
o an input amplifier compartment
o a power amplifier compartment
o an output filter compartment
24
Advertisement
Table of Contents
